target-mips: Make CP1.FIR read-only here too

CP1.FIR is read-only in hardware so gdbstub must respect it.  We already
respect it for CTC1 instructions, so do it here too.

Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
This commit is contained in:
Maciej W. Rozycki 2014-11-03 18:51:38 +00:00 committed by Leon Alrae
parent 800675f117
commit c7d4d98ae7

View File

@ -105,7 +105,7 @@ int mips_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
RESTORE_ROUNDING_MODE;
break;
case 71:
env->active_fpu.fcr0 = tmp;
/* FIR is read-only. Ignore writes. */
break;
}
return sizeof(target_ulong);